学校下个月要举行数学竞赛，你要参加吗？

Xuéxiào xià gè yuè yào jǔxíng shùxué jìngsài, nǐ yào cānjiā ma?

The school will hold a math competition next month. Do you want to take part?

通过这次全国性的科技竞赛，他结识了很多志同道合的朋友。

Tōngguò zhè cì quánguóxìng de kējì jìngsài, tā jiéshí le hěn duō zhìtóngdàohé de péngyou.

Through this nationwide science and technology competition, he met many like-minded friends.

明天学校将举行一场英语演讲竞赛。

Míngtiān xuéxiào jiāng jǔxíng yī chǎng yīngyǔ yǎnjiǎng jìngsài.

The school will hold an English speech competition tomorrow.